Propeller for vessels



May 8, 1 923.

Filed March 22. 1931 w A- R Q INUEIY'T'OR Patented May 8, 1923.

' siren stares nterseeare Worries,

crranrins riranrosraorrn, or rears, FRANCE.

rnornntnn ron vnssnns Application filed March 22, 1921. Serial No. 451,570. 5 i i To all whom it may concern.

Be it known that I, CHARLES Memos MOTTE, a citizen of the French Republic, residing at Paris, France, have invented new and useful Improvements in Propellers for Vessels, of which the following is a specification.

My invention relates to propellers for ves sels of the kind described in my Patent No.

vanes of the turbine.

The object of the present invention which is described in detail and hereinafter claimed, is to provide elevated driving power so that the turbine can be used on large vessels.

For this purpose there has been provided a double superposed turbine enclosed, in

separate casings and provided with appropriate control mechanism co-acting together as shown in the enclosed drawings, in

. which Figure 1 is a vertical section of adouble turbine and of its mechanism; Fig. 2 is an elevation showing an installation comprising several turbines; Figs. 3, 4t and'5 are diagrammatic views showing in plan several positions of the outlet for the water from the turbine casings.

In each of the double superposed turbines, the casing of the upper turbine at encloses a turbine wheel 6 while the lower casinga surrounds a similar wheel 6 The wheel 6 is fast on a vertical control shaft 0 turning appropriately in a suspension sleeve d which can turn; to this sleeve is secured the casing a comprising an inlet a and a lateral exhaust a The casing a is closed at a and has a flan e a to take the lower open extremity of t e casing a which has an inlet a and a lateral outlet a. The wheel I) is secured to a tubular shaft 6 turning appropriately and lodged in an external sleeve f which holds suspended the casing a. Guiding means {7 and h for the sleeve f are provided where de sired.

and '6 I The control shafti and a bevelwheel il give movement to the wheels I) and b. A

casing j vertically adjustable by means of a screw-threaded stem 7' and a handwheel f,

encloses the said control mechanismwhich is operated by a motor 70 through bevelgear k Uprights or standards Z hold the mechanism in the adjustedposition.

In order to allowthe raising and lowering of the, propelling mechanism without disengaging it from the motor, the bevel' gear 10 which is in engagement with the wheel'vl fast on the shaft 2', is mounted, by means of a (lardaujoint, at oncend' of a horizontal shaft which carries at its other end of a second Gardan joint which connects it with the motor shaft is.

' This intermediate horizontal shaft, has

two Cardan joints forming the flexible connection between the motor andthe' ling mechanism and transmits to the latter propelthe rotary movement of the motor while also allowing of the vertical adjustment'by means of the stem 7' and the handwheel j thebevel gear 2' and 70 being always in mesh, no mat terv what the position turbines may be. 7 I v In order to turn or rotatethe water outlet orifices a and a to any angular position, a direction controlling mechanism is indi cated, it consisting of a control shaft m which turns a shaft a on which is secured a. I

long toothed pinion n When the propeller comprisesonly a single superposed group of elements arranged in the vertical axis of the vessel'as in Fig, 1,

the pinion n acts through the intermediary of a pinion wheel, with a toothed wheel'o just on the hollow shaft (Z of the lower cas-. ing a and by means of two intermediary pinions, with a second tooth'wheel p fast on the hollow shaft 7 of the upper casing a. In this manner, there obtains, by the rotation of shaft m, the angular displacement of the casings a and a in oppositedirectionsto each other their outlet'orifices being able to to '5 to propel or stop the boat.

In the case where the propeller comprises two superposed groups of elements, symmetrically disposed at each side of the vertical axis of the vessel as in Fig .-i2,i the toothed wheels 0 and p, integral with the hollow shafts of the casings a and a each mesh with a-single intermediate inion in (high or low) of the take up all the positions indicated inFigs, I i

gear with the long pinion 113, T e super:

posed casings a, and a ofeach group turn therefore in the same direction and through their respective control shatts can turn in opposite direction to those of the other 5 group. I I claim: Means for propelling and stopping vessels consisting in suspended and superposed turbine casings upper and lower inlet orifices and a lateral outlet in said casings, means for suspending said casings and means for simultaneously turning same and mechanism for transmitting power for continuously rotating the turbine Wheels.

CHARLES MARIUS MOTTE. 

